I'm guessing the hair loss might be because you've been so ill, and not due to the remicade. It takes several weeks (I'm sure quincy will chime in as to how many) after being ill for the hair to start falling out. I lost a lot of hair near the end of my first flare...part of it was the "extra" pregnancy hair I'd grow, but I think it thinned even beyond my pre-pregnancy normal. I noticed it got thicker again once I'd been in remission a while.
I think some people on here have had good luck with Noxin shampoo.
Status: Remission since May 2009!
Symptoms began in November 2008, ~4 weeks after giving birth to my son
Diagnosed with pancolitis on 1/30/09
Meds: Apriso (4 0.375g pills ONCE!! daily), mesalamine enema twice weekly, Natural Factors Ultimate probiotic 12/12 Formula, multivitamin. Used prednisone (starting dose 40 mg) to get into remission.